TY - RPRT TI - The first direct evidence of pre-columbian sources of palygorskite for Maya Blue AU - Dean E. Arnold AU - Bruce F. Bohor AU - Hector Neff AU - Gary M. Feinman AU - Patrick Ryan Williams AU - Laure Dussubieux AU - Ronald Bishop PY - 2012 DO - 10.1016/j.jas.2012.02.036 UR - https://pubs.usgs.gov/publication/70118264 ID - 70118264 ER -